Sinking Inputs (Npn) - MachMotion Apollo III Manual

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Then connect the input to the input terminal on the middle row (X1, X2, etc.). See the diagram below.
Jumper
position
1
Switch
To activate the input, 24V must be supplied to the input. A floating signal or a ground will not turn on the input.
The LED corresponding to the input will turn on brightly when the input is activated.

5.2.2 Sinking Inputs (NPN)

For most NPN proxys place the jumper on the top two pins. Then connect the signal into the corresponding input.
See the example below.
Jumper
position
2
If the proxy has an internal pull-up resistor, depending on its size, it could require the jumper to be completely
removed. Use a 3.9k ohm resistor and connect it between XSL and C0+.
Below is an example of a 24V NPN proxy with an internal pull-up resistor. The jumper on the Apollo III must be
completely removed for this to work.
X-D Y-D Z-D A-D B-D C-D
X-S Y-S Z-S A-S B-S C-S
GND GND GND 5V 5V
FIGURE 32 STANDARD 24V INPUT
C0- C0- C0-
X-D Y-D Z-D A-D B-D C-D
X-S Y-S Z-S A-S B-S C-S X0 X1
GND GND GND 5V 5V 5V X0L X1L X0L
FIGURE 33 STANDARD NPN PROXY
Apollo III Using Mach3
C0- C0- C0- C0- C0- C0- C0- C0+ C0+
X0 X1 X2 X3 X4 X5 X6 X7
5V X0L X1L X0L X3L X4L X5L X6L X7L X8L
C0- C0- C0- C0- C0+ C0+
X2 X3 X4 X5 X6 X7 X8
X3L X4L X5L X6L X7L X8L
C0+ C0+ C0+ C0+ C0+ C0+
X8 X9 X10 X11 X12 X13 X14 X15 C0+ 24V
X9L X10L X11L X12L X13L X14L X15L C0- GND
C0+ C0+ C0+ C0+ C0+ C0+
X9 X10 X11 X12 X13 X14 X15 C0+ 24V
X9L X10L X11L X12L X13L X14L X15L C0- GND